Explore the controversy surrounding vitamin D intake recommendations in this Forum webcast from Harvard School of Public Health. Delve into the Institute of Medicine's report on dietary reference intakes for calcium and vitamin D, and understand why nutrition experts disagree on optimal levels. Learn about dietary sources, supplements for children, fortified foods, and the impact of body weight on vitamin D absorption. Examine safety concerns, target levels, and the role of sunscreen in vitamin D production. Investigate risk factors for deficiency and conditions like rickets. Hear insights from experts including Dr. Manson, Dr. Brennan, Dr. O'Brien, and Dr. Hughes as they discuss the complexities of vitamin D supplementation and its effects on health.